Clean frets improve playability and string life — clean 'em up good, with MusicNomad's FRINE Fret Polish for guitar, bass, and other fretted instruments. It's safe for any and all types of metal frets, with a petroleum-free formula that removes oxidation, dirt, and oils. You can bend strings more smoothly and guitarists at Industrie Music have noticed increased string life in general. Your frets take more abuse than you may realize. Maintain them for maximum playability, with MusicNomad FRINE Fret Polish.